BUICK RAINIER vs MAZDA MAZDA5

The BUICK RAINIER (2003–2007, 5 model years) carries 525 NHTSA consumer complaints and 10 safety recalls, while the MAZDA MAZDA5 (2006–2016, 11 model years) carries 529 complaints and 6 recalls. Severity indicators for the pair split as follows: 33 vs 43 crashes, 24 vs 14 fires, and 0 vs 0 reported fatalities.

Raw complaint counts favor whichever nameplate has fewer vehicles on the road, so the cleaner lens is components: which specific part families concentrate each model's filings? For the BUICK RAINIER, the leading complaint category is electrical system (107 filings), followed by fuel system, gasoline and exterior lighting. For the MAZDA MAZDA5, it is steering (96), ahead of tires and suspension. When the two vehicles cluster around the same component, the problem is likely a shared supplier or a shared federal standard under stress; when they diverge, each nameplate has its own defect signature independent of the other.

Average NCAP crash-test scores are not uniformly available for both nameplates in this dataset, which typically means one or both pre-date the 2011 rating methodology refresh. Use the side-by-side table below as your scorecard, but do not treat it as a verdict. Recall counts tell you how many defects the manufacturer has already been compelled to remedy; complaint counts tell you what owners are still flagging today; and safety ratings tell you how the vehicle performs in standardized barrier tests, three different lenses on the same underlying question. The "also compare" links at the bottom of this page let you triangulate against neighboring nameplates in each model's competitive set.